setModificationTime can fail with InvalidArgument

haskell · Nov 19, 2023 · e6ec698 · e6ec698
1 parent 1751cfa
commit e6ec698
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diff --git a/System/Directory.hs b/System/Directory.hs
@@ -1166,6 +1166,9 @@ setAccessTime path atime = encodeFS path >>= (`D.setAccessTime` atime)
 --
 -- * 'isDoesNotExistError' if the file or directory does not exist.
 --
+-- * 'InvalidArgument' on FAT32 file system if the time is before
+--   DOS Epoch (1 January 1980).
+--
 -- Some caveats for POSIX systems:
 --
 -- * Not all systems support @utimensat@, in which case the function can only

diff --git a/System/Directory/OsPath.hs b/System/Directory/OsPath.hs
@@ -1459,6 +1459,9 @@ setAccessTime path atime =
 --
 -- * 'isDoesNotExistError' if the file or directory does not exist.
 --
+-- * 'InvalidArgument' on FAT32 file system if the time is before
+--   DOS Epoch (1 January 1980).
+--
 -- Some caveats for POSIX systems:
 --
 -- * Not all systems support @utimensat@, in which case the function can only